A:
Positive:
1 x 15516417 x 22166313 x 11935717 x 9127359 x 2629991 x 17051119 x 13039221 x 7021289 x 5369413 x 3757767 x 20231003 x 1547
Negative:
-1 x -1551641-7 x -221663-13 x -119357-17 x -91273-59 x -26299-91 x -17051-119 x -13039-221 x -7021-289 x -5369-413 x -3757-767 x -2023-1003 x -1547
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 1,551,641, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 1,551,641 | |
| -1 | -1,551,641 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,551,641.
Example:
1 x 1,551,641 = 1,551,641
and
-1 x -1,551,641 = 1,551,641
Notice both answers equal 1,551,641
With that explanation out of the way, let's continue. Next, we take the number 1,551,641 and divide it by 2:
1,551,641 ÷ 2 = 775,820.5
If the quotient is a whole number, then 2 and 775,820.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,551,641 | |
| -1 | -1,551,641 |
Now, we try dividing 1,551,641 by 3:
1,551,641 ÷ 3 = 517,213.6667
If the quotient is a whole number, then 3 and 517,213.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,551,641 | |
| -1 | -1,551,641 |
Let's try dividing by 4:
1,551,641 ÷ 4 = 387,910.25
If the quotient is a whole number, then 4 and 387,910.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,551,641 | |
| -1 | 1,551,641 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 59 | 91 | 119 | 221 | 289 | 413 | 767 | 1,003 | 1,547 | 2,023 | 3,757 | 5,369 | 7,021 | 13,039 | 17,051 | 26,299 | 91,273 | 119,357 | 221,663 | 1,551,641 |
| -1 | -7 | -13 | -17 | -59 | -91 | -119 | -221 | -289 | -413 | -767 | -1,003 | -1,547 | -2,023 | -3,757 | -5,369 | -7,021 | -13,039 | -17,051 | -26,299 | -91,273 | -119,357 | -221,663 | -1,551,641 |
Here are some more numbers to try:
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